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Finding the Fourth Proportional to 42,459.65, 58,439.65 and 37,390.67

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Solution

The fourth proportional to 42,459.65, 58,439.65 and 37,390.67 is: 51,462.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,459.65 : 58,439.65 = 37,390.67 : x
  2. Step 2: Convert to fraction form
    42,459.65/58,439.65 = 37,390.67/x
  3. Step 3: Cross multiply
    42,459.65x = 58,439.65 × 37,390.67
  4. Step 4: Simplify right side
    42,459.65x = 2,185,097,481.11
  5. Step 5: Solve for x
    x = 2,185,097,481.11/42,459.65
  6. Step 6: Final answer
    x = 51,462.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.